Respuesta:
opción a )
Explicación paso a paso:
9b* 9b - 5a* 5a
81 [tex]b^{2}[/tex] - 25 [tex]a^{2}[/tex]
[tex]\left(9b\right)^2-\left(5a\right)^2[/tex]
[tex]\left(9b+5a\right)\left(9b-5a\right)[/tex]
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Respuesta:
opción a )
Explicación paso a paso:
9b* 9b - 5a* 5a
81 [tex]b^{2}[/tex] - 25 [tex]a^{2}[/tex]
[tex]\left(9b\right)^2-\left(5a\right)^2[/tex]
[tex]\left(9b+5a\right)\left(9b-5a\right)[/tex]